From: Thierry Bultel <thierry.bultel@wanadoo.fr>
To: xenomai@xenomai.org
Subject: [Xenomai] nanosleep and clock_nanosleep increase MSW counter without SIGXCPU
Date: Fri, 05 Oct 2012 11:47:41 +0200 [thread overview]
Message-ID: <506EACBD.8090307@wanadoo.fr> (raw)
Hi,
My config is linux-3.2.21+xenomai-2.6.1 ; ipipe-core-3.2.21-arm-1.patch,
on qemu-system-arm ; versatile express. I have CONFIG_SMP to NO
My test case is quite simple.
The main process is as such:
-----------------
int main ( ......
pthread_set_name_np(pthread_self(), "MAIN PROCESS");
if (pthread_set_mode_np(0, PTHREAD_WARNSW) != 0)
{
LOG("pthread_set_mode_np FAILED\n");
exit(0);
}
for (;;)
{
struct timespec delay = { 10, 0 };
nanosleep(&delay,NULL);
}
----------
The MSW counter keeps increasing, whereas no SIGXCPU is delivered:
[root@buildroot ~]# cat /proc/xenomai/stat
CPU PID MSW CSW PF STAT %CPU NAME
0 0 0 1131 0 00500080 99.6 ROOT
0 717 95 189 0 00b40184 0.0 MAIN PROCESS
0 0 0 381587 0 00000000 0.4 IRQ34: [timer]
The build command:
arm-linux-gcc -fmessage-length=0 -pipe -Wall -Werror -g -DNOT_USE_DYNAMIC_LOADING
-I/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/usr/include/xenomai
-D_GNU_SOURCE -D_REENTRANT -D__XENO__
-I/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/usr/include/xenomai/posix
-c /home/tbultel/workspace/agv/linux/simerimcan/sim_agv_can_main.c
-o /home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_agv_can_main.o
-MMD -MF/home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_agv_can_main.d
-I. -I/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/opt/can/include/canfestival-xenomai
-I"="/usr/include/xenomai -I"="/usr/include/xenomai/posix
arm-linux-gcc -lrt -lpthread -rdynamic
-L/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/usr/lib
-lxenomai -lpthread_rt
-Wl,@/home/tbultel/workspace/Buildroot/output/host/usr/arm-unknown-linux-gnueabi/sysroot/usr/lib/posix.wrappers
-o /home/tbultel/workspace/agv/../bin/arm/sim_agv_can-xenomai
/home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_agv_can_main.o
/home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_agv_can_bus.o
/home/tbultel/workspace/agv/linux/simerimcan/build.xenomai/obj/sim_erim_can_log.o
Thanks
Thierry
next reply other threads:[~2012-10-05 9:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-05 9:47 Thierry Bultel [this message]
2012-10-05 10:10 ` [Xenomai] nanosleep and clock_nanosleep increase MSW counter without SIGXCPU Gilles Chanteperdrix
2012-10-05 10:22 ` Thierry Bultel
2012-10-05 12:31 ` Gilles Chanteperdrix
2012-10-05 13:23 ` Thierry Bultel
2012-10-05 13:30 ` Gilles Chanteperdrix
2012-10-08 14:42 ` Thierry Bultel
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